/*
 * Copyright 2019-2029 geekidea(https://github.com/geekidea)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.nd.fastdp.utils;

import com.alibaba.fastjson.JSON;

import javax.servlet.http.HttpServletResponse;
import java.io.PrintWriter;

/**
 */
public final class HttpServletResponseUtil {

    private static String UTF8 = "UTF-8";
    private static String CONTENT_TYPE = "application/json";

    private HttpServletResponseUtil(){
        throw new AssertionError();
    }

    public static void printJson(HttpServletResponse response, Object object){

        try{
            response.setCharacterEncoding(UTF8);
            response.setContentType(CONTENT_TYPE);
            PrintWriter printWriter = response.getWriter();
            printWriter.write(JSON.toJSONString(object));
            printWriter.flush();
            printWriter.close();
        }catch (Exception e){
            throw new RuntimeException(e);
        }

    }
}
